GB618438A - Improvements relating to electric subtracting circuits - Google Patents

Improvements relating to electric subtracting circuits

Info

Publication number
GB618438A
GB618438A GB1336746A GB1336746A GB618438A GB 618438 A GB618438 A GB 618438A GB 1336746 A GB1336746 A GB 1336746A GB 1336746 A GB1336746 A GB 1336746A GB 618438 A GB618438 A GB 618438A
Authority
GB
United Kingdom
Prior art keywords
valve
anode
cathode
valves
proportional
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1336746A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1336746A priority Critical patent/GB618438A/en
Publication of GB618438A publication Critical patent/GB618438A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/36—DC amplifiers in which all stages are DC-coupled with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

618,438. Valve amplifying circuits. SCOLES, G. J., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. May 2, 1946, No. 13367. [Class 40 (vi)] An output voltage ¢ (v2 - v1) proportional to the difference between the input voltages v1, v2 applied to the grids of two valves A, B, each having an anode load R and a cathode load R, is taken from the tapping point of a potentiometer R1, connected between the anode of one valve and the cathode of the other valve. In a modification (Fig. 3, not shown), the output voltage is taken between the tapping points of two potentiometers, one connected between the anode of the first valve and the cathode of the second valve, and the other connected between the cathode of the first valve and the anode of the second valve. The valves may have a common anode load (Fig. 4, not shown), in which case a voltage proportional to the sum of the input voltages appears at the anodes. By using a number of valves, an output proportional to the difference between any two of a number of voltages can be obtained (Fig. 5, not shown).
GB1336746A 1946-05-02 1946-05-02 Improvements relating to electric subtracting circuits Expired GB618438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1336746A GB618438A (en) 1946-05-02 1946-05-02 Improvements relating to electric subtracting circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1336746A GB618438A (en) 1946-05-02 1946-05-02 Improvements relating to electric subtracting circuits

Publications (1)

Publication Number Publication Date
GB618438A true GB618438A (en) 1949-02-22

Family

ID=10021678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1336746A Expired GB618438A (en) 1946-05-02 1946-05-02 Improvements relating to electric subtracting circuits

Country Status (1)

Country Link
GB (1) GB618438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877347A (en) * 1954-04-08 1959-03-10 Philco Corp Signal matrixing circuit
DE1255711B (en) * 1957-08-27 1967-12-07 Philips Nv Circuit arrangement for a three-color television system for generating a corrected brightness signal for the color television signal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877347A (en) * 1954-04-08 1959-03-10 Philco Corp Signal matrixing circuit
DE1255711B (en) * 1957-08-27 1967-12-07 Philips Nv Circuit arrangement for a three-color television system for generating a corrected brightness signal for the color television signal

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